6. Britney Spears

What a recovery for Brit! It seems like it was just yesterday that we watched the court-room drama for the custody of her children, or the late-night visit by paramedics to her house, on suspicion of an overdose.

After 5 years spent mostly off-stage, 'The Circus Starring Britney Spears' world tour, inspired by 2008 album The Circus, was a massive success, grossing $131.8 million, to become Spears biggest ever tour.

That's not mentioning the runaway success of her fragrance lines and other promotions!

8. Sandra Bullock

Just days after winning the prestigious Best Actress award at the Academy Awards for her work in The Blind Side, Bullock was shocked by allegations that her husband Jesse James had been cheating on her for some time with a bevy of tattooed mistresses.

When the allegations proved true, Bullock booted James from her life. Now, with her divorce finalised, she's back on track, as funny and vivacious as ever.